Split Light Mixing Device for Stage Fixtures

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Solution Overview

Problem

Existing stage light fixtures with integrated light guides and frosting sheets require high processing accuracy and stability in fastening, leading to increased complexity and cost, and are prone to light leakage and damage due to loose connections.

Innovation Solution

A stage light fixture with a split light mixing device, where the light guide and light beam homogenizer are independent, allowing for simplified processing and secure attachment via a cover that presses the homogenizer tightly to the light output surface, reducing light leakage and processing difficulty, and enabling various frosting effects with different homogenizers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the light guide and frosting sheet are integrated, then light leakage is prevented, but processing accuracy requirements increase and manufacturing complexity increases

Engineering Contradiction:

Improvelight leakage preventionVSAvoidprocessing accuracy

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent divides the integrated structure into separate components: the light guide and the frosting sheet are manufactured independently and then assembled together. This segmentation allows each component to be processed with standard tolerances while maintaining the light-tight connection through the stepped structure and snap-fit assembly method.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If the light guide and frosting sheet are integrated, then connection stability is improved, but device complexity increases

Engineering Contradiction:

Improveconnection stabilityVSAvoidstructure complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The frosting sheet is nested within the light guide structure, with the light guide forming a stepped configuration where the first portion receives the light beam and the second portion receives the frosting sheet. This nested arrangement provides stable connection while maintaining a compact, simple overall structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Stability of the object's composition

If the cover and holder are firmly fastened, then light guide stability is improved, but fastening reliability requirements increase

Engineering Contradiction:

Improvelight guide stabilityVSAvoidfastening reliability

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The holder is designed with a pre-formed stepped structure that guides the assembly process. The first portion of the holder provides initial positioning and support for the light guide, while the second portion accommodates the frosting sheet. This preliminary structural preparation ensures stable assembly without requiring high-reliability fastening operations.

Inventive Principle:

Principle #10Preliminary action

4Measurement precision

If the light guide is placed in a through hole with cover buckled, then light guide positioning is improved, but processing difficulty increases

Engineering Contradiction:

Improvelight guide positioningVSAvoidprocessing difficulty

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The stepped structure of the holder and the snap-fit connection between the cover and holder create a self-aligning, self-positioning assembly system. The geometric features guide the components into correct positions during assembly without requiring external positioning fixtures or complex alignment procedures, making the process easy to manufacture.

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution simplifies processing, reduces light loss, and enhances the universality of light effects while maintaining secure attachment, thus lowering costs and preventing damage from loose connections.

Implementation Method 1

a light mixing device for reflecting the light beam at least one time

Methodology Applied

Scientific EffectLight reflection: Reflection

Implementation Method 2

The cover is configured to press the light beam homogenizer tightly to make the light beam homogenizer closely attached to the light output surface

Methodology Applied

Scientific EffectMechanical pressure: Mechanical Force

Data Source

PatentUS11947145B2Stage light fixture with split light mixing device

Publication Date: 2024.04.02 GUANGZHOU HAOYANG ELECTRONICS CO LTD

AI summary

A stage light fixture with a split light mixing device includes a light source for generating a light beam and a light mixing device for reflecting the light. The light mixing device includes a light guide with a gradually changing cross-sectional area and a light beam homogenizer for receiving the light beam emitted from a light output surface of the light guide. The light beam homogenizer and the light guide are independent of each other, and the cross-sectional area of the light beam homogenizer is at least 1.1 times of the cross-sectional area of the light output surface. The stage light fixture further includes a holder for clamping and fixing the light guide, and a cover fastened to the end of the holder away from the light source. The cover is configured to press the light beam homogenizer tightly to closely attach to the light output surface.